Accumulation/Distribution line is a mathematical construct which only considers DAILY data, and is independent of long-term price trends. Basically it says the daily lows are a lot further away from the closing price than the daily highs. http://www.investopedia.com/terms/a/accumulationdistribution.asp IMO technical analysis is voodoo, particularly on penny stocks, but if people want to believe in it, good for them.